Figure out Valus Trau’ug’s Shield and Take it Out
As mentioned before, this particular Prison of Elders boss has the ability to change his shield, often times rendering weapons next to useless. But, if you followed the first step, each one of your fireteam members will be decked out with a specific damage type. The first thing that needs be done is Valus Trau’ug must be quickly located so that the team can know exactly what shield they’re dealing with first.
Once that’s figured out, have whichever team member is in charge of that damage type focus solely upon Valus Trau’ug while the other two keep the additional enemies to a minimum. Valus Trau’ug tends to move around a lot so having this person focused on eliminating the shield while being covered by the other two makes the fight go much quicker than it normally would.
Once the shield is down it’s time to switch focus.